Antifreezing pum p attachm ent



D. BHUMPHREYS. ANTIFREEZING PUMP ATTAGHMBNT.

Patented Oct. 27, 1896.

(No Model.)

Nirno STATES DANIEL F. IIUMPIIRYS, OF MILTON, NORTH DAKOTA.

ANTIFREEZING PUMP ATTACHMENT.

SECIFIGATION forming part of Letters Patent N o. 570,284, dated October2*?, 1896M .Application filed November 16, 1895. Seria-l No. 569,228.(No model.)

To all whom it may concer/t:

Beit known that I, DANIEL F. HUMPHRErs, a citizen of the United States,residing at Milton, in the county of Cavalier and State of North Dakota,have invented certain new and useful Improvements in Antifreezing PumpAttachments; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to improvements in pump attachments, andparticularly to socalled antifreezing pump attachments; and it consistsin an automatically-operating antifreezing pump attachment whoseconstruction and arrangement of parts will be hereinafter fullydescribed, and pointed out in the claims. 4

In cold climates one of the most frequent and troublesome annoyances towhich persons are subjected is the freezing of water in their pumps.I-Iitherto no effective means have been suggested for remedying thisannoyance, and to-day the only resort for a person whose pump is frozenis to warm the pipes by artificial heat, and 'thus thaw out the same.

The object of my invention is to provide an attachment which can be usedin connection With any common and well-known type of pump which willeffectually prevent freezing of water in the pipes of the pump and,operating automatically, will perform its function wit-hout requiringany setting or adjustment and entirely independent of anyaction on thepart of the user of the pump.

The device whichI have constructed to fulfil the above-mentioned objectof invention consists of a specially-constructed valve in thedischargepipe of the pump. At the point at which the valve is stationedthe discharge-pipe is formed with a sudden bend, and vdirectly over thevalve there is introduced into the discharge-pipe a second pipe of shortlength, which in action serves to permit an overiiow of the water inthat portion of the discharge-pipe above the valve, and may be termed,therefore, an overflowpipe. The valve is attached to the upper end of avalve-rod which extends downward into the discharge-pipe and has securedto its lower end an apertured valve-head within which operates a spring-controlled valve.

The spring-controlled valve normally closes the apertured valve-head,but under pressure of water will rise and allow water to be discharged.The valve andits fittings are placed below the frost-line, and the valveis adapted to rise and close the mouth of the overflowpipe when waterisdischarged from the pump and to fall and close the discharge-pipe justbelow the bend therein, thus permitting the water to drain from theupper portion of the discharge-pipe and to escape through theoverflow-pipe when the action of the pump is stopped.

My invention is fully disclosed in the drawing which accompanies andforms a part of this specification, in which the same reference-numeralsrefer to the same or corresponding parts, and in which is represented asection of my antifreezing pump attachment, with the portion of thedischarge-pipe directly in connection therewith.

Referring to the drawing, l represents a portion of the maindischarge-pipe of a pump. To this is connected by a T-shapedconnecting-piece 2 the upwardly-extending pipe-section 3 (which forms anair-chamber and serves to regulate the action of the pump) and thethimble 4. The thimble 4 is used as a means for connecting tothe maindischargepipe that portion of the discharge-pipe in which is situated myautomatically-operatin g device for preventing the freezing of water inthe pump. To one end of the thimblellis secured the casting 5, whoseupper end is enlarged to receive the pipe-section 6. This pipe-sectionforms a chamber within which moves one of the valves which I use inconnection with my antifreezing pump attachment, and is connected bymeans of the thimble 7 and the pipe-section S to the U- shaped casting9. To this casting is attached the upper portion l() of thedischarge-pipe,`

and also what I shall term the overflowpipe ll, the latter beingdirectly over the mouth of the pipe-section 8.

Within the portion of the discharge-pipe which I have thus described(which should be stationed in the ground below the frostline) is locatedthe attachment which I use to prevent the freezing of the water in thepump. This attachment is as follows: Within the pipe-sections 6 and 8entends the valve-rod l2, to the upper end of which is attached a valve13 and to the lower end of which is attached a valve-head 14. The valve13 is adapted when in its lower posit-ion to close the mouth of thepipe-section 8 and prevent tlow of water therethrough, and when in itsupper position to close the mouth of the overflowpipe 11 and allow waterto pass from the discharge-pipe 1 through into the discharge-pipo 10,preventing overflow or escape of the same. The travel of the valve 13between these two points is accompanied by a corresponding travel of thevalvehead 14, which is iitted closely into the pipe-section G. rlhisvalvehead is apertured, as shown at 14, to permit passage ofwatertherethrough, and is provided with an interior chamber 142, thelower end of which is marked by a shoulder 143. The apertures in thecasting all lie in the chambered portion thereof, and the casting itselfis made of somewhat smaller diameterin its upper portion, so as topermit water gaining access to the chambered portion thereof to pass outand up into the discharge-pipe 10. The lower end of the valve-rod 12 issomewhat reduced in diameter and extends downward into and through thechambered portion of the valve-head 14, affording a guide for thereciprocation of the valve 15. The valve 15 is provided with an interiorchamber 15 to allow the same to move relative to the extended end of thevalve-rod 12, and the outer edge of its headed portion rests against theshoulder 143 of the valve -head 14. A coiled spring 16, of strengthsuflicient to bear the weight of the valve-rod and the parts attachedthereto, normally acts to hold the valve l5 at the lower limit of itstravel.

Considering now the operation of the device, When it is desired to drawwater from the pump the pressure of the water against the lower side ofthe valve 15 must be sufficient to cause the entire valve attachment torise, and therefore to cause the valve 13 to close the mouth of theoveriiow-pipe 1l, before the valve 15 will be pressed upward against thespiral spring 1G and a-llow water to escape through the apertures in thevalve 14. Vhen the discharge of water commences, it continueswithoutinterruption as long as it is desired to draw water from thepump. As soon, however, as the action of the pump stops, the water belowthe valveoperating device escapes through the vent 17 formed in theconnecting-piece 5, and the entire valve attachment is caused to bedrawn downward to its lower position, the valve 13 thereby acting toclose the mouth of the pipe-section 8. The natural gravitationaltendency of the water in the discharge-pipe 10 above the portion of thedischarge-pipe in which my antifreezing attachlnent is stationed causessuch water to overiiow and discharge through the overflow-pipe 11, thusremoving all oi the standing water from that portion of thedischarge-pipe above the frost-line and preventing any possibility offreezing of water in the pipes of the pump.

The valve-rod 12 is guided in its reciprocation bya lower guide formedby the fitting of the lower portion of the valve-head 14 against thesides of the pipe-section 10, and at its upper end by the circularlguide 122, held in position in the center ol' the pipe-section S in asuitable manner.

The operation of the valve takes place entirely automatically and isdependent upon the flow of water through the pump. Its construction issuch as to render it very durable, while if the parts are properlyiitted the desired action of the attachment will take place withoutfail.

Should I desire to allow water to stand in the upper discharge-pipe 10,as I sometimes do in summer, I accomplish this result by placing aturning-valve 1S in the overflowpipe 11 and operate the same from thesurface of the ground by an upwardly-extending rod 19. Then the valve 1Sis closed, discharge of water through the overflow-pipe is prevented andthe action of the pump will take place in the same manner as that ofordinary pumps. /Vhen, however, the valve 18 is open, as soon asdischarge of water from the discharge-pipe 10 ceases all of the waterstanding in such pipe will escape through the overflow-pipe 1l andfreezing of the same by standing in the pipe will be prevented.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is-

1. In an antifreezing pump attachment, the combination with adischarge-pipe having a bend therein and an opening formed in saiddischarge-pipe on the upper side of said bend, of a valve stationed insaid discharge-pipe, adapted, when water is being drawn, to rise andclose said opening, and when the drawing of water ceases to fall andclose the mouth of the discharge-pipe below said opening, a valve rodattached thereto, an apertured valve-head therein, and a closure forsaid valve -head operated automatically by the pressure of the water,substantially as described.

2. In an antifreezin g pump attachment, the combination with adischarge-pipe having a bend therein and an opening formed in saiddischarge-pipe on the upper side of said bend, of a valve stationed insaid discharge-pipe, adapted, when water is being drawn, to rise andclose said opening, and when the drawing of water ceases, to fall andclose the mouth of the discharge-pipe below said opening, a valve-rodattached thereto, an apertured interiorly chambered valve -head thereon,a spring-pressed valve held within the chamber of said valve-head, andan aperture in the disch arge-pipe below said valve-head, substantiallyas described.

In testimony whereof I aiiix my signature in presence of two witnesses.

DANIEL F. HMPIIREYS.

Witnesses Monats JOHNSON, S. A. WRooLm.

IIO

